diff --git a/data/abilities.js b/data/abilities.js
index 1e232dec1d..40848821da 100644
--- a/data/abilities.js
+++ b/data/abilities.js
@@ -302,10 +302,11 @@ let BattleAbilities = {
 		desc: "When this Pokemon has more than 1/2 its maximum HP and takes damage from an attack bringing it to 1/2 or less of its maximum HP, its Special Attack is raised by 1 stage. This effect applies after all hits from a multi-hit move; Sheer Force prevents it from activating if the move has a secondary effect.",
 		shortDesc: "This Pokemon's Sp. Atk is raised by 1 when it reaches 1/2 or less of its max HP.",
 		onAfterMoveSecondary(target, source, move) {
-			if (!source || source === target || !target.hp) return;
+			if (!source || source === target || !target.hp || !move.totalDamage) return;
 			const lastAttackedBy = target.getLastAttackedBy();
 			if (!lastAttackedBy) return;
-			if (target.hp <= target.maxhp / 2 && target.hp + lastAttackedBy.damage > target.maxhp / 2) {
+			const damage = move.multihit ? move.totalDamage : lastAttackedBy.damage;
+			if (target.hp <= target.maxhp / 2 && target.hp + damage > target.maxhp / 2) {
 				this.boost({spa: 1});
 			}
 		},
@@ -853,10 +854,11 @@ let BattleAbilities = {
 		desc: "When this Pokemon has more than 1/2 its maximum HP and takes damage bringing it to 1/2 or less of its maximum HP, it immediately switches out to a chosen ally. This effect applies after all hits from a multi-hit move; Sheer Force prevents it from activating if the move has a secondary effect. This effect applies to both direct and indirect damage, except Curse and Substitute on use, Belly Drum, Pain Split, and confusion damage.",
 		shortDesc: "This Pokemon switches out when it reaches 1/2 or less of its maximum HP.",
 		onAfterMoveSecondary(target, source, move) {
-			if (!source || source === target || !target.hp) return;
+			if (!source || source === target || !target.hp || !move.totalDamage) return;
 			const lastAttackedBy = target.getLastAttackedBy();
 			if (!lastAttackedBy) return;
-			if (target.hp <= target.maxhp / 2 && target.hp + lastAttackedBy.damage > target.maxhp / 2) {
+			const damage = move.multihit ? move.totalDamage : lastAttackedBy.damage;
+			if (target.hp <= target.maxhp / 2 && target.hp + damage > target.maxhp / 2) {
 				if (!this.canSwitch(target.side) || target.forceSwitchFlag || target.switchFlag) return;
 				target.switchFlag = true;
 				source.switchFlag = false;
@@ -4016,10 +4018,11 @@ let BattleAbilities = {
 		desc: "When this Pokemon has more than 1/2 its maximum HP and takes damage bringing it to 1/2 or less of its maximum HP, it immediately switches out to a chosen ally. This effect applies after all hits from a multi-hit move; Sheer Force prevents it from activating if the move has a secondary effect. This effect applies to both direct and indirect damage, except Curse and Substitute on use, Belly Drum, Pain Split, and confusion damage.",
 		shortDesc: "This Pokemon switches out when it reaches 1/2 or less of its maximum HP.",
 		onAfterMoveSecondary(target, source, move) {
-			if (!source || source === target || !target.hp) return;
+			if (!source || source === target || !target.hp || !move.totalDamage) return;
 			const lastAttackedBy = target.getLastAttackedBy();
 			if (!lastAttackedBy) return;
-			if (target.hp <= target.maxhp / 2 && target.hp + lastAttackedBy.damage > target.maxhp / 2) {
+			const damage = move.multihit ? move.totalDamage : lastAttackedBy.damage;
+			if (target.hp <= target.maxhp / 2 && target.hp + damage > target.maxhp / 2) {
 				if (!this.canSwitch(target.side) || target.forceSwitchFlag || target.switchFlag) return;
 				target.switchFlag = true;
 				source.switchFlag = false;